Ohmygod, you gotta go over to Jay Brooks' blog to see more about Jack.
I knew Jack was planning to visit Russian River this week. Yesterday he did, and by coincidence, Jay, a master chronicler of all things beer, happened to be there, too. So he's got photos, a video, and therefore documentation that our beloved Jack, screwed-up arm and all, climbed a ladder to sign his old New Albion sign (of which, Vinnie and Natalie Cilurzo are the caretakers).
Damn, I wish I'd been there!
UPDATE: The next day, Jack, Jay, Pat, Natalie, and Vinnie trekked out to the site of Jack's brewery. Jay recorded the event.